fix: use absolute public booking URLs

backend/bookings/test_api.py

@@ -2,6 +2,7 @@ from datetime import timedelta
 
 from django.core import mail
 from django.urls import reverse
+from django.test.utils import override_settings
 from django.utils import timezone
 from rest_framework import status
 from rest_framework.test import APITestCase
@@ -60,6 +61,7 @@ class BookingApiTests(APITestCase):
         self.assertEqual(response.data["performances"][0]["id"], self.performance.id)
         self.assertEqual(response.data["performances"][0]["available_seats"], 3)
 
+    @override_settings(SITE_BASE_URL="https://tickets.azionelab.example")
     def test_reservation_creation_success(self):
         response = self.client.post(
             reverse("api-reservation-create", kwargs={"performance_id": self.performance.id}),
@@ -80,7 +82,10 @@ class BookingApiTests(APITestCase):
         self.assertNotIn("email", response.data)
         self.assertEqual(Reservation.objects.count(), 1)
         self.assertEqual(len(mail.outbox), 1)
-        self.assertIn("/api/reservations/confirm/?token=", mail.outbox[0].body)
+        self.assertIn(
+            "https://tickets.azionelab.example/api/reservations/confirm/?token=",
+            mail.outbox[0].body,
+        )
 
     def test_reservation_creation_with_insufficient_seats(self):
         response = self.client.post(
@@ -97,6 +102,7 @@ class BookingApiTests(APITestCase):
         self.assertEqual(response.data["status"], "booking_unavailable")
         self.assertEqual(Reservation.objects.count(), 0)
 
+    @override_settings(SITE_BASE_URL="https://tickets.azionelab.example")
     def test_confirmation_success(self):
         reservation = self.create_reservation()
         _, raw_token = generate_confirmation_token(reservation)
@@ -112,7 +118,11 @@ class BookingApiTests(APITestCase):
         self.assertEqual(response.data["reservation_id"], reservation.id)
         self.assertEqual(response.data["status"], Reservation.Status.CONFIRMED)
         self.assertEqual(response.data["party_size"], reservation.party_size)
-        self.assertTrue(response.data["qr_code_url"].startswith("/api/check-ins/preview/?token="))
+        self.assertTrue(
+            response.data["qr_code_url"].startswith(
+                "https://tickets.azionelab.example/api/check-ins/preview/?token="
+            )
+        )
         self.assertNotIn("token", response.data)
         self.assertTrue(response.data["qr_code_image"].startswith("data:image/png;base64,"))
         self.assertEqual(reservation.status, Reservation.Status.CONFIRMED)